Monster Oil is home to the cleanest synthetic brass lubricants currently on the market. The company was started by 3 professional trumpet players who collaborated with an aerospace lubricant firm. Together, products that were originally used by NASA were reworked until they were perfect for brass instruments. The result is a line of products that are designed to clean, protect and lubricate instruments all at the same time. Our Slide Grease is a professional grade thick grease that should be applied to slides that shouldn't move. It is extremely long-lasting, temperature resistant and will help protect your instrument from corrosion. For more information check us out at www.monsteroil.net. Also check out our extremely popular YouTube channel which includes in-depth interviews with some of the best brass players in the world - www.YouTube.com/BrassChats.